| 释义 |
quadrant/ˈkwɒdr(ə)nt/n. 1 a quarter of a circle's circumference 1/4 圆周， 90 度弧 2 a plane figure enclosed by two radii of a circle at right angles and the arc cut off by them (直角)扇面形 3 a quarter of a sphere or spherical body 1/4 球体， 1/4 球面体 4 any of four parts of a plane divided by two lines at right angles 一个(被两条直角相交线所分割的)1/4 部分；象限 5a a thing, esp. a graduated strip of metal, shaped like a quarter-circle (1/4 圆的)扇形体，扇形板(尤指有刻度的金属物) b an instrument graduated (esp. through an arc of 90°) for taking angular measurements 象限仪，四分仪 □ quadrantal /-ˈdrænt(ə)l/ adj.[Middle English from Latin quadrans -antis ‘quarter’, from quattuor ‘four’] |